Nutritional testing determines the dietary content of foods and food products. Eurofins Nutritional Chemistry Laboratory in Auckland provides services in Nutrition Facts Labels and other analyses in food, pet food, feed, commodities, and dietary supplement testing. With access to more than 250 Eurofins laboratories globally and our dedicated competence centres, we can subcontract samples worldwide and offer almost all possible requested tests.
Nutritional labeling testing can be performed through a variety of accredited methods depending on the type of nutrient and testing requirements.
The carbohydrate family includes a variety of chemicals. It has always been an important part of human diet. Carbohydrates not only act as source of energy, they also have other physiological influences, some of which are beneficial but others undesired. Structurally carbohydrates can be categorized into mono-, di-, oligo-, and poly-saccharides. Dietary fibre, another critical dietary component, also consists of certain oligo- and poly-saccharides, which are not digested in human small intestine by the endogenous enzymes.
Monosaccharides – The simplest sugars, such as glucose, galactose and fructose. They provide sweet taste in foods and are readily converted to energy via quick absorption into the bloodstream.
Disaccharides – Two molecules of monosaccharides undergo condensation to form various disaccharides. The most common ones are sucrose (Glucose-Fructose), maltose (Glucose-Glucose), and lactose (Galactose-Glucose). Similar to monosaccharides, they can be readily utilized to provide energy after specific endogenous enzymes convert them to their corresponding monosaccharides.
Oligosaccharides – Made up of three to approximately ten monomeric units. Examples are raffinose (Galactose-Glucose-Fructose) and stachyose (Galactose-Galactose-Glucose-Fructose). Codex Alimentarius Commission has included non-digestible oligosaccharides as a part of dietary fibre.
Polysaccharides – Long chains of monosaccharides (usually >>10). This category includes starch (consisting of amylose and amylopectin), xylan, mannan, cellulose, pectin and chitin.
Fatty Acid Testing
Fatty acid testing is an essential component of nutritional labeling testing. Omega fatty acids have been linked to some of the most exciting new nutritional research in the industry. Proper quantification of fatty acids provides an unbeatable edge in marketing your products by identifying and emphasizing specific beneficial fatty acids.
Minerals and Trace Elements Testing
The elemental composition of foods is very important for human health, both the levels of major nutritionally important elements such as sodium and calcium; and confirming that no toxic elements such as arsenic and lead are present. Eurofins offers a range of elemental analytes. ICP-OES and ICP-MS techniques are most frequently in used to achieve the lowest detection limits to analyse trace amounts.
Other Key Areas of Analyses